Introduction
Proven Reliability and Good Efficiency
Specially designed by be quiet! with the price-concious PC builder in mind: System Power 9 400W offers renowned be quiet! performance and quietness and makes it possible for you to build cost-effective and reliable systems.
Power
Total power
400 W
AC input voltage
200 - 240 V
AC input frequency
50 Hz
Input current
4 A
Power factor
0.95
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
103 W
Combined power (+12V)
384 W
Combined power (+5V)
103 W
Combined power (-12V)
3.6 W
Combined power (+5Vsb)
15 W
Max output current (+3.3V)
24 A
Max output current (+12V1)
22 A
Max output current (+12V2)
18 A
Max output current (+5V)
15 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
3 A
Hold time
17 ms
Efficiency
89%
Power protection features
Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector
20+4 pin ATX
Motherboard power cable length
45 cm
Number of SATA power connectors
5
Number of PATA power connectors
2
SATA power cable length
350,550 mm
PCI Express power connectors (6+2 pin)
2
PCI Express power cable length
50 cm
CPU power connector (4+4 pin)
Y
CPU power cable length
60 cm
Performance
80 PLUS certification
80 PLUS Bronze
Purpose
PC
Power supply unit (PSU) form factor
ATX
ATX version
2.4
Silent mode
Y
Bearing technology
Sleeve
Certification
CE, CB, TÜV, RCM, CU
Design
Product colour
Black
Fan diameter
12 cm
Number of fans
1 fan(s)
Illumination
N
On/off switch
Y
Packaging content
Cables included
AC
Weight & dimensions
Width
150 mm
Depth
140 mm
Height
86 mm
Weight
1.82 kg
Packaging data
Package width
97 mm
Package depth
268 mm
Package height
195 mm
Package weight
2.1 kg
Package type
Box
Technical details
Sustainability certificates
RoHS, ENERGY STAR
Other features
Screws included
Y
Noise level (silent mode, <30%)
9.5 dB
Noise level (quiet mode, 50%)
10.4 dB
Noise level (full-load mode, 100%)
18.6 dB
Manual
Y